Display panel and display device provided with same

Abstract

A liquid crystal panel includes a liquid crystal layer that can switch to a light transmitting state and a light scattering state, and lines provided on a portion of the liquid crystal layer on the side opposite to the observation side. The lines are provided with a reflecting portion by which at least a portion of light that entered from the observation side is reflected toward the observation side.

1 . A display panel comprising:
 a liquid crystal layer that can switch to a light transmitting state and a light scattering state;   a metal layer provided in a portion of the liquid crystal layer on a side opposite to an observation side;   a line at least partially configured by the metal layer; and   a pair of transparent electrodes provided so as to sandwich the liquid crystal layer on respective sides of the liquid crystal layer,   wherein the line is provided with a reflecting portion by which at least a portion of light that entered from the observation side is reflected toward the observation side.   
     
     
         2 . The display panel according to  claim 1 , further comprising:
 a light-shielding layer that blocks external light,   wherein the reflecting portion has an area that, per pixel, is in a range of 15% to 50%, inclusive, of the area of a portion other than the light-shielding layer.   
     
     
         3 . The display panel according to  claim 1 ,
 wherein a cutout portion in which the transparent electrode is not formed is provided in correspondence with the reflecting portion in at least one of the pair of transparent electrodes.   
     
     
         4 . The display panel according to  claim 3 ,
 wherein the cutout portion is provided so as to be located within the reflecting portion when viewed from the observation side.   
     
     
         5 . The display panel according to  claim 1 , further comprising:
 a switching element provided on the side of the liquid crystal layer opposite to the observation side,   wherein the switching element is composed of a material that can transmit light in a visible range and does not produce stand-by consumption current due to light in the visible range.   
     
     
         6 . The display panel according to  claim 5 ,
 wherein the liquid crystal layer contains polymer network liquid crystal.   
     
     
         7 . The display panel according to  claim 5 ,
 wherein the switching element is configured by an indium-gallium-zinc composite oxide.   
     
     
         8 . The display panel according to  claim 1 , further comprising:
 a black matrix layer that defines a pixel aperture portion,   wherein the reflecting portion is configured by a portion of the line that is not covered by the black matrix layer.   
     
     
         9 . The display panel according to  claim 1 , further comprising:
 a reflection prevention film provided on a surface on at least one of the observation side and a back face side.   
     
     
         10 . A display device comprising:
 the display panel according to  claim 1 ; and   a projection device that irradiates the display panel with light from the observation side.